Newtonsoft.Json/Utilities/DynamicReflectionDelegateFactory.cs

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#region License
// Copyright (c) 2007 James Newton-King
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion

#if !(PORTABLE || NETFX_CORE || PORTABLE40)
using System;
using System.Collections.Generic;
#if NET20
using Newtonsoft.Json.Utilities.LinqBridge;
#endif
using System.Reflection;
using System.Reflection.Emit;
using Newtonsoft.Json.Serialization;
using System.Globalization;

namespace Newtonsoft.Json.Utilities
{
    internal class DynamicReflectionDelegateFactory : ReflectionDelegateFactory
    {
        public static DynamicReflectionDelegateFactory Instance = new DynamicReflectionDelegateFactory();

        private static DynamicMethod CreateDynamicMethod(string name, Type returnType, Type[] parameterTypes, Type owner)
        {
            DynamicMethod dynamicMethod = !owner.IsInterface()
                ? new DynamicMethod(name, returnType, parameterTypes, owner, true)
                : new DynamicMethod(name, returnType, parameterTypes, owner.Module, true);

            return dynamicMethod;
        }

        public override ObjectConstructor<object> CreateParametrizedConstructor(MethodBase method)
        {
            DynamicMethod dynamicMethod = CreateDynamicMethod(method.ToString(), typeof(object), new[] { typeof(object[]) }, method.DeclaringType);
            ILGenerator generator = dynamicMethod.GetILGenerator();

            GenerateCreateMethodCallIL(method, generator, 0);

            return (ObjectConstructor<object>)dynamicMethod.CreateDelegate(typeof(ObjectConstructor<object>));
        }